http://dswarmsikhttkg7jgsoyfiqpj3ighupfrvuz5ri3lu5q2dlqyrpgk7ad.onion/share/archive/misc/zender.A_Roadmap_for_Orpheus.html
While the A parts consist of a series of 12 micro
structures with different characteristics that bear no relation to one
another, let alone present identical segments, each B part, during its
duration, repeats one single musical shape in quasi endless, free
ensemble playing by the musicians involved.